duxthe1, can you see if it also has the
Change over valve / Pressure converter / Vacuum Transducer: 0015407997 - could be 0015407497

visible between the air filter box and coolant reservoir. There is another one below the air filter, behind the passenger head light. Looks like this

http://12.153.160.115/webapp/wcs/stores/servlet/imc/images/tn/0005450327.jpg

but maybe with a big top saucer part.

Tahnks

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1983 240D Silver/Blue "Sadie", unknown miles. 100k miles on WVO single tank, converted to 2 tank about 10k miles ago, FPHE, Injector Heaters, Aux Fuel pump. Alcohol/Water injection. Frantz oil bypass filter
1992 300D 2.5 Turbo Green/Tan "Jade" 267K miles Stock.
1992 300D 2.5 tan/tan "Rocky" on 2 tank WVO. Pressure actuated Turbo "rat's nest" surgery completed. 197k miles